Governor.



'No. 781,731. PATENTED FEB. 7, 1905. N. LOMBARD'.

GOVERNOR.

APPLICATION FILED JUNE 29,1904.

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No. 781,731. PATENTED FEB. '7, 1905. N. LOMBARD.

GOVERNOR.

APPLIGATION FILED JUNE 29,1904.

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N0. 781,731. PATENTED FEB. 7, 1905. N. LOMBARD.

GOVERNOR.

APPLICATION FILED JUNE 29,1904.

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GOVERNOR.

APPLIOATION FILED JUNE 29,1904.

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3? m'uTE No. 781,731. PATENTED FEB. 7, 1905. N. LOMBARD.

GOVERNOR.

APPLICATION FILED JUNE 29,1904.

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N0.'781,'731. v PATENTED FEB. 7, 1905. N. LOMBARD.

GOVERNOR.

APPLICATION FILED JUNE 29,1904.

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Patented February '7, 1905.

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PATENT NATHANIEL LOMBARD, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THEIMPROVED GOVERNOR COMPANY, OF WATE iVlLLE, MAINE, A

CORPORATION OF MAINE.

GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 781,731, dated February7, 1905.

Application filed June 29, 1904. Serial No. 214,671.

Be it known that l, NATHANIEL LOMBARD, a citizen of the United States ofAmerica, and a resident of \Vorcester, in the county of 'orcester andState of Massachusetts, have invented certain new and usefulImprovements in (-rovernors, of which the following is a specification.

This invention relates to mechanism for controlling the speed of variousmotors, and more particularly to such governors which serve to applypower from an auxiliary source to effect a movement of the valve, gate,or other regulating devices, and is an improvement upon the inventionsdescribed in Letters Patent No. 736,276, issued to me August 11, 1903,and Letters Patent No. 754,469, issued to me March 15, 190%.

It consists in certain novel features of construction and arrangement ofparts, which will be readilyunderstood by reference to the descriptionof the drawings and to the claims to be hereinafter given.

Of the drawings, Figure 1 represents a plan view of a governor embodyingthe features of this invention. Fig. 2 represents a rear elevation ofthe same, a portion of the driving mechanism being shown removedtherefrom. Fig. 3 represents a left-hand elevation of the same. Fig. Arepresents a longitudinal central vertical section looking toward thefront of the machine. Fig. 5 represents a sectional elevation of thesame, the cutting plane being on line 5 on Fig. A. Fig. 6 representsafacc view of one of the clutch mechanisms. Fig. 7 represents an endelevation of the driving-pulley and the controlling mechanism containedtherein. Fig. 8 represents a central vertical section of the piston andcontrollingwalve therefor, the cutting plane being on line 8 8 on Fig.2. Fig. 9 represents a horizontal sectional detail of thecontrolling-valve, the cutting plane being on line 9 9 on Fig. 8. Fig.10 represents a sectional detail of one of the primary driving-shaftsand its slidable coacting member. Fig. 11 represents a sectionalelevation of the mechanism for operating the controlling-rod. Fig.lirepresents a sectional detail of the rack and pinion operated by theopposite end of the controlling-rod; and Fig.

13 represents a detailed elevation of the indicator mechanism, a portionof the gate-indicator being broken away. Figs. 8 to 13, inclusive, aredrawn to an enlarged scale.

Similar characters designate like parts throughout the several liguresof the drawings.

The numeral 10 designates a suitable bascplate on which is journaled instamlards 11 a shaft 12 for connection with the gate or regulatingdevice for controlling the speed of a motor as, for example, aturbine-\\'l1eel--which shaft maybe appropriately termed amotorcontrolling shaft. in the standards ll may be also journaled apreferably hollow actuating-shaft 13 for the motor-controlling shaft,they being conveniently connected by spurgears 15 and 16, the latterhaving secured thereto a disk 1%, which is preferably releasably fixedto the shaft 12 by some such connector as a pin-clutch 17, carried by anarm 18, fast upon the shaft and engaging an opening in the disk 14:.

The actuating-shaft 13 has keyed or otherwise securedto it thelaterally-projecting arms 19, forming a part of the inner members ofclutches or connectors .20 21, the outer members of which are fixed toor formed integrally with driving-shafts 22 23, respectively, which arehere shown as hollow, surrounding the actuating-shaft and journaled inthe standards 24, supported from the base-plate between the standardsll. The driving-shafts may be conveniently rotated in oppositedirections by a bevel-gear 25, meshing with a bevel-gear 26, fixed to ashaft 27, conveniently journaled in a bracket 27*, supported by thestandards A and rotated at the desired speed from any suitable source ofpower through a pulley 28. The outer member of each clutch 21 mayconsist of a flanged disk 2%), while the inner coacting members in eachcase may consist of a pair of shoes 34), supported by arms 31,articulated to the laterally-projecting arms 1%), and between theseshoes 30 and the operatingrod are interposed adjustable connectorsEither end of each connector is provided with a disk 34, one of whichfits into a socket or recess in the shoe 30, while the other fits into asocket or recess in the operating member 32, slidably mounted in thehollow actuating-shaft 13. These adjustable connectors 33 are radial atall times to the axis of the operating member 32, but longitudinallywhen in normal position. Their outer ends are inclined slightly towardeach other. On one end of the operating-rod 32 is the screw-thread 35,which coacts with the nut 36, said nut being articulated in an openingin the lever 37. The ends of the lever 37 being bifurcated have mountedtherein trucks 38 upon the pins 39. The truck 38 upon one end of thelever 37 coacts with extensions or guides 40 on the plate 41, mountedupon the base-plate 10, and the other end of the lever 37, with itstruck 38 coacts with a block 42, slidabl y mounted in the guides43,forming a part of the standards 11.

It is obvious from an inspection of the drawings that whenever thecentral portion of the operating-rod 32 is moved in a direction awayfrom one of the clutches 2O 21 the inner ends of the connector 33 ofthat clutch will be moved to a more nearly vertical position, causingthe shoes 30 to coact with the flange of the outer clutch member 29,thereby insuring the rotation in unison of the operating member 32 andthe actuating-shaft 13 with the outer clutch member 29. As soon as theoperating member 32 returns to its normal position the shoes 30 willmove out of contact with the flange of the outer clutch member 29, andthe actuating-shaft 13 and the operating member 32 will cease torevolve. The direction of retation of the actuating-shaft 13 and theoperating member 32 depends upon which pair of clutch members 20 21 isin coacting position, it being understood that the outer clutch membersare continuously driven in opposite directions.

To actuate the lever and move the operatingrod in one direction oranother to operate either of the clutches as may be necessary to impartthe necessary regulating movement, the block 42 has mounted therein uponone end a connector 44. Upon the other end of this connector is mounteda piston 45, operating within the cylinder 46, said cylinder beingsupported upon uprights 47 from the standards 24. To either end of thiscylinder hydraulic or other pressure may be admitted through passages 4849. To control the admission of power in the cylinder is a valve 50,having upon its outer periphery a central groove 51, said valvereciprocating within a casing 52, supported in a chest 53, mounted uponthe cylinder 46. The casing 52 is provided with a series of openings 5455, comm unicating with annular passages 54' and 55*, formed in theinner periphery of the chest 53. The passages 54 and 55 are suitablyarranged to admit the pressure supplied through a passage 56 in the body56*, supported upon the l l l upper part of thecylinder 46, to eitherone of the passages 48 49, and at the same time they permit the pressureto be exhausted from the cylinder through a passage 57. It is obviousfrom an inspection of Figs. 4, 8, and 9 that the passage 48'communicates with an annular passage 54*, and when the valve is at itsextreme of movement to the left of Figs. 8 and 9 it will communicate,through the annular passage with the admission passage or chamber 56,thus admitting pressure from the chamber 56 to the left of the cylinder46. At the same time the other annular passage 54* will be uncovered bythe valve 50, and the pressure at the right of the piston 45 will passthrough the passage 49, through the annular passage 54 to theexhaust-chamber 57. When the valve 50 is at the opposite end of itsstroke, the admission-chamber will communicate with the passage 49 in asimilar manner, while the passage 48 will communicate with the chamber53 and thence through the center of the tubular valve 50 with theexhaust-chamber 57.

To cause a movement of the valve 50, there is secured upon its inner enda connector 58, the other end of said connector being provided with ascrew-thread and passing through a block or nut 59, articulated in abifurcated support 60, adjustably mounted upon one end of a lever 61,said lever having upon its opposite end a bifurcated portion, with a pin62, engaging the extensions or guides 63, projecting upwardly from thebracket 27*. To enable the valve 50 to be adjusted with respect to itscasing 51, the connector 58 has upon its end a knurled head 64, by whichthe connector 58 may be rotated in the nut 59 when the check-nut isreleased, thereby permitting the valve to be moved to any desiredposition relative to the casing 52. To cause a movement of the lever 61,said lever is provided with an opening intermediate its ends, in whichis articulated a member 66. The member 66 has slidably mounted therein aslightly-enlarged portion 67 of a connector 68. The pivoted member 66coacts with washers 69, said washers being held normally in positionagainst shoulders, formed by the enlarged portion 67 upon the connector68, by springs 70, resting against shoulders secured to said connectorconsisting of the gear 71 and collar 72.

One end of the connector 68 is mounted in bearings 73 on asupporting-plate 74. supported upon the uprights'47 from the standards24. The opposite end of the connector 68 is provided with a screw-thread75, coacting with a nut 76, articulated in the end of a lever 77,fulcrumed at 78 in a bifurcated bracket 79, secured to saidsupporting-plate 74. The lower end of the lever 77 is bifurcated, as at80, the bifurcated end of which engages with a split collar 81 upon thegrooved collar 82, movable endwise upon the driving-shaft 27, thisendwise movement being secured by a pin 83 extending through slots inthe shaft Lil 27 and passing through a slidable member l the connector68 and the lever 77 by the cen- 84, which member is located within acentral bore of said driving-shaft 27 and has its outer end provided ontwo sides with a series of rack-teeth 85. member 81 engage with toothedsegments 86, pivoted to the hub of the driving-pulley 28 at right anglesto the slidable member 84, each segment 86 meshing with a slidable rack87, the outer end of which is articulated to a centrifugal weight 88,pivoted at 89 to a boss upon the inner periphery of the pulley 28. Theouter end of each weight 88 is provided with ears 90, to which issecured a spring 91, the opposite end of said spring 91 beingarticulated to the opposite weight at a point intermediate of itsfulcrum and its end.

it will be readily seen that any sudden change in the action of the loadwill be transmitted to the pulley 28 and through the mechanism alreadydescribed to the valve 50, and a sudden jump would seriously impair theeflicicncy of the governor, even if such parts were not damaged, and toobviate this there is mounted upon the chest at a point midway betweenthe valve and the nut 59 a casing 105 and forming one end of the chest53, said casing 105 having upon its outer end a gland or stutting-box106, and extending within the chest is a similar stuflingbox 107. Uponthe connector 58 is secured a piston 108, which is movablelongitudinally therewith in a cylinder 109, formed by the casing 105,filled with any suitable tluid. There is provided at either end of thecylinder 109 a passage 110, communicating with a chamber 111, formed inthe upper portion of the casing 105, the fluid extending nearly to thetop of the same. The upper end of the chamber 111 is provided with acover 112, by which access may be secured to said chamber for thepurpose of replenishing the fluid contained therein, said cover beingheld in position by a member 113 and lock-nut 11%. The member 113 isthreaded into a lug in the chamber 111 and provided at its lower endwith a reduced portion to fit one of the passages 110. Within thechamber 111 there is a deflecting-plate 115, extendingover the otherpassage 110, to prevent the stream of fluid from being projected againstthe cover 112.

it will be seen from the foregoing description that should any jumpoccur any movement of the piston in either direction will arise thefluid on one side of said piston to be displaced and forced through apassage 110 to the opposite side of said piston, and the rapidity withwhich the same acts depends upon the amount of opening of the passage110. Under abnormal conditions the piston 108, through the connector 58,will cause the movement of the lever 61 to be retarded, a spring T0 atone side of the member 66, Fig. 8, being compressed to permit the freemovement of The teeth of the slidable trifugal mechanism contained inthe pulley In the normal position of the centrifugal mechanism (shown inFig. T) the weights 88 are somewhat removed from the peripheral flangeof the pulley 28, and it is obvious that any increase of speed of thepulley will cause the weights 88 to be moved outwardly by thecentrifugal action thereon, and this movement will impart, through theracks 87 and segments 86, a sliding movement of the member 8t, whichmovement will impart, through the pin 83, passing through slots in the drivingshaft 27, a movement of the pivoted lever to cause the connector68 to move the upper end of the lever 61 outwardly to move the valve 50,and thereby cause the piston 45, through its connector-H, to move theblock 42 toward the cylinder t6, carrying with it the lever 37, causingthe central portion of the operating member 32 to move away from theouterclutch member 21, thereby setting this clutch and causing arotation of the hollow actuatingshat't 13. The decrease in speed of thepulley 28 will cause the weights to move toward the axis of the shaft 27to operate the various members mentioned in the opposite direction tomove the operating member 32 toward the opposite end of the governor.

To the left of the actuating-shaft 13 is socured at sprocket-wheel 92.(Shown at the right of Fig. This sprocket-wheel being keyed to the shaft13 transmits any rotary motion thereof through the sprocket-chain 93 toa sprocket-wheel 9 1, secured to a revoluble member 95, mounted inbearings 96 in the bi- -furcated standard 97, secured to the standards11. The revoluble member is free to turn within the bearings 96, but isincapable of endwise movement. It is provided with a threaded bore whichengages with the threaded end of the controlling-rod 98, this rodhaving-secured to it a roller 99, which coacts with a revoluble disk100, mounted upon a shaft 101, having secured to its opposite end a gear102, meshing with a gear 103, secured to the outer member of the clutch21, said gears 102 103 producing a continuous revolution of the disk100, the speed of revolution depemling entirely upon the speed of thedriving member 29, to which the gear 103 is secured or of which it formsa part.

It is obvious from the foregoing description that the rotation of theactuating-shaft 13 may be in either direction, according to which pairof clutch members are operating, and this rotation in either directionof the actuating-shaft 13 is transmitted to the revoluble member 95,threaded to the controllingrod 98, and it will be seen that a revolutionof said revoluble member 95 in either direction will act upon saidcontrolling-rod 98 to cause the roller 99 to be moved from its normalposition diametrically across the disk &

100, the length of movement in either direction depending entirely uponthe amount of rotation accorded the actuating-shaft 13. The opposite endof the controlling-rod 98 is provided with a rack 10 1, the teeth ofwhich mesh with the spur-gear 71, secured to and revoluble with theactuator 68, and it is obvious that any endwise movement of thecontrolling-rod 98 will effect a rotary movement of said connector 68,one end of which is threaded and engages the nut 76, articulated to theouter end of the lever 77, as already described. It is evident,therefore, that any increase or decrease of speed will be transmittedthrough the pulley 28 to the weights 88, pivoted thereto, and the actionof these weights will be transmitted through the various mechanismsdescribed to the actuating shaft 13, and continuing through thecontrolling-rod 98 the connector 68 will be rotated immediately in thenut 76 to increase or decrease the distance between said nut and thelever 61. As soon, however, as any changes in the relation of thevarious parts have been effected by the increase or decrease of thespeed of the motor, so that the roller 99 has been moved diametricallyacross the disk 100, the revolution of this disk will act upon theroller 98 to rotate it in one direction or the other, depending to whichside of the center the roller has been moved. The effect of the rotationof said roller 99, and consequent rotation of the controlling-rod 98,will be to cause the threaded end of said controlling-rod 98 to berotated in the threaded sleeve 95, to thereby cause a return of theroller to its normal position central to said revoluble disk 100. Thereturn movement of the controlling-rod 98 effects, through the medium ofthe rack member 10% and gear 71, a rotation of the connector 68, causingthe threaded end thereof to coact with the nut 76 to return the levers61 and 77 to their normal positions.

The motor-controlling shaft 12 is provided with a sprocket-wheel 116,connecting with a sprocket-wheel 117 by means of a chain 118, saidsprocket 116 being mounted upon a shaft 119 in bearings 120, secured tothe guides 13 and cylinder 416. The shaft 119 is provided with athreaded portion between the sprocketwheel 117 and the bearings 120 uponthe guides 43. Upon the screw portion of the shaft 119 is a threadedmember 121, the upper end of the same being slotted to receive anindicating-plate 122, mounted in the upper side of the bearings 120, andsaid member 121 is adapted to slide along said plate 122 to indicate theposition of the gate or other device being regulated. The plate 122 isprovided with a scale upon its .upper surface to cooperate with saidmember 121. There is also secured to the connector a l a pointer 123,which indicates the position of the governor upon the plate 122.

As it may be desired at times to operate the regulating mechanism byhand, the motorcontrolling shaft 12 may carry fast upon it a bevel-gear12 1, meshing with a bevel-pinion 125 on a spindle 126, turning in asupport 127, provided with a hand-wheel 128, and when this hand-wheel isin use the pin-clutch 17 may be withdrawn from the disk 14 to disconnectthe governor from the motor-controlling shaft.

The operation of this improved governor is as follows: With the parts inthe relation here illustrated power is applied to the pulley 28 to drivethe centrifugal mechanism left-handedly at such a rate that normally forthe desired speed of rotation of the machine the weights of thecentrifugal mechanism contained within said pulley will be retainedsubstantiall y at the center of their range of movement, and the variousscrews, racks, and the roller 99 will also be at the center of theirpath. This condition continues until there is a change in the speed ofthe motoras, for example, an increase. This results in causing theweights forming part of the centrifugal mechanism to move outwardlyunder the in creased centrifugal force generated, and the racks 87,secured thereto, will be moved thereby, and operating through thesegment 86 the slidable member 85 will be permitted to move in thedirection indicated by the arrow on Fig. 5. This movement of theslidable member will operate upon the pivoted lever 77 to move the lowerend toward the front of the machine while the upper end is moved in theopposite direction, thereby causing, through the power-cylinder piston15, a movement of the operating-rod 32 in the direction indicated by thearrow on Fig. a. This movement of the operating-rod 32 in a directiontoward the left of Fig. 4: causes the clutch member 21 at the right ofsaid figure to be set so that the actuating-shaft 13 and the operatingmember 32 will be rotated about their axes in unison with the clutchmember 21 in the direction indicated by the arrow, Fig. 6, or toward thefront of the machine To counteract the effect of the power-cylinder uponthe clutch to permit the return of the valve to its normal position anda consequent checking of the piston to stop the movement of the gate,the relative positions of the lever 37 and the operating-rod 32 areautomatically changed in the following manner: As soon as theactuating-shaft begins its rotation through the connection made by theclutch 21 it also rotates the operating-rod 32. This causes the threadedend of said rod to move in the lever to the right, and this being in theopposite direction to the travel of the block 12 tends to release theclutch. As long as the piston continues its movement the rate of travelof the upper end of the lever will offset that caused by the operationof the rod 32 in the nut 36 and the clutch will remain in engagement;but as soon as the piston is checked by the return of the valve to itsnormal position this outward movement of the rod disengages the clutch,and the movementof the gate at once ceases until the valve again acts.This rotation of the actuating-shaft 13 will impart movement, throughthe gears 15 16, to the motor-controlling shaft and cause a closingmovement of the gate. if, for example, a hydraulic system is beinggoverned, or a similar operation upon such motor as may be connectedwith the shaft 13 and the speed of which it is desired to regulate. Therotation of the operating member will cause a revolution of the member95. As the weights move outwardly to effect a movement of the clutchmembers through the medium of mechanisms already described thecontrolling-rod 98 is moved in a direction that will operate theconnector 68 to increase the distance bescribed until the desiredmovement is attained. 1f the weights acted alone upon the controllingmechanism, they would tend to cause too great a movement or toovercorrect. To obviate this dittieulty and partially check the movementof the connectors 68, the gear T1 on the latter is operated by the rack11M and moved quickly at the beginning of its movement: but thismovement is gradually decreased as the roller 99 moves diametricallyacross the disk 100 and away from its center. The action of therevoluble sleeve 95 on the controlling-rod 98 is constant, while therotation of the roller 99 is increased with its distance from the centerof the disk 100. This gradually-decreasing effect of the rack 191 uponthe gear 71 is due to the increase of speed of the roller 99 as it movesaway from the center of the disk 100, which permits the threaded end ofthe controlling-rod 98 to more rapidly screw into the sleeve 95, andthereby more etfectually offset the movement of said rod in the oppositedirection effected by the action of said revoluble sleeve upon saidthreaded end. in other words, during the revolution of the member 95 theaction of the threads on its bore is to effect a constant movement ofthe rod 98 toward the connector 68. At the beginning of this movementthe rotation of the roller 99 causes only a very slight turning of saidthreaded end of the rod 98 in the same direction; but

as the roller moves farther from the center 1 of the disk 100 andgradually increases in speed the threaded end will turn faster in adirection to practically ofl'set the operation of the revoluble sleeve95 thereon in the opposite direction. It is evident, therefore, that theinitial action of the weights will cause the controlling mechanism toeffect a quicker movement of the clutches and regulating mechanism thancould be secured if the weights acted alone, and this action on the partof the controlling mechanisms gradually decreases, so that there is noopportunity for the various devices to overcorrect. \Vhen the speeddecreases and the weights return to their normal operative position, theclutch members are released and the revolution of the operating memberand member 95 stops. The disk 100 continues to revolve, however, and actupon the roller 99, rotating it and causing the rod 98 to be screwedinto the sleeve 95, and this movement of said rod will turn theconnector 68 in its nut 76 to decrease the distance between said nut andthe lever 61, thereby returning said lever to its normal position, whenall of the mechanisms forming a part of the governor will be ready tocare for any further increase or decrease in the speed of the motor.

It is obvious that in the operation of the various controllingmechanisms as described the roller 99 will remain at rest at the centerof the disk 100 while the centrifugal weights occupy their normalposition; but as soon as the controlling-rod carries the roller off thecenter to a point having rotary travel the roller and rod upon which itis mounted will be operated thereby in the sleeve 95 until it againreaches the axis of the revoluble disk 1.00. It will be evident that thefarther the weights depart from the normal the farther the roller 99will be carried from the center of the disk and the more rapidly theshaft upon which said roller is mounted will be rotated, and thereforethe neutralizing of the return of the weights will be at a rate varyingwith the extent of their movement and the distance which the rod hasbeen moved, being at first most rapid, then gradually decreasing as theroller returns to the center. The neutralizing effect will, moreover, besubstantially proportional to the rate of return of the weights to thenormal.

Should any sudden load be put upon the. governor which would tend toinjure the various mechanisms, the increase or decrease would be :aredfor by the tension devices T1), which permits of the movenumt of theconnector 68 imlepemlent of the lever 61 under abnormal conditions, asis obvious.

The dash-pot mechanism secured to the valve 50 prevents too sudden anaction of this valve, and thereby prevents injury to the variousmechanisms.

The action of this improved governor will be to secure a more rapid orgreater correction for changes of speed of the motor governed arisingfrom change of load or the like without permitting this correction tooverrun and produce a seesawing of the speed in opposite directions.This governor mechanism, moreover, secures an almost absolutely constantrotation of the motor system driven thereby, while applying at all timesample l mechanism acting upon the outer'end of said power to overcomeany resistance to movement of the gate or other regulating system.

It is believed that with the foregoing description the operation of thisgovernor will be fully understood without further descrip tion.

Having thus described my invention, I claim- 1, In a governor, thecombination with a hollow actuating-shaft, of means including a driving-pulley for rotatingthe actuating-sh aft in opposite directions,connectors between the rotating means and actuating-shaft located inpart within said actuating-shaft, a powercylinder acting upon theconnectors, means for controlling the application of power, and acentrifugal mechanism for actuating the controlling means located withinsaid pulley.

2. In a governor, the combination with a hollow actuating-shaft, ofmeans including a driving-pulley for rotating the actuating-shaft inopposite directions, connectors between the rotating means andactuating-shaft located in part within said actuating-shaft, apowercylinder acting upon the connectors, means for controlling theapplication of power, centrifugal mechanism located within said pulleyfor actuating the controlling means, and mechanism for counteracting theeffect of the centrifugal mechanism upon the valve.

3. In a governor, the combination with a hollow actuating-shaft, ofmeans including a driving-pulley for rotating the actuating-shaft inopposite directions, connectors between the rotating means andactuating-shaft located in part within said actuating-shaft, apower-cylinder acting upon the connectors, a valve for controlling theadmission of pressure to the cylinder, centrifugal mechanism locatedwith in said pulley for actuating said valve, and mechanism operated bythe element moved by the power-cylinder for counteracting the effect ofthe centrifugal mechanism upon the valve.

I. In a governor, the combination with a hollow actuating-shaft, ofmeans for rotating the actuating-shaft in opposite directions,connectors between the rotating means and actuati ng-sha ft, apower-cylinder acting upon the connectors, a valve for controlling theadmission of fluid-pressure to the cylinder, a rod therefor, revolubleweights operating upon said valve-rod, a pivoted lever between saidweights and valve-rod, and yielding means for lever.

6. Ina governor, the combination with a hollow actuatingshaft, of meansfor rotating the actuating-shaft in opposite directions, connectorsbetween the rotating means and actuating-shaft, located in part withinsaid actuating-shaft, a rod slidable within said actuatingshaft, a leverconnected intermediate its ends to said rod, and provided with a rollerat one end, guides for said roller, power mechanism acting upon theother end of said lever, and means for controlling the application ofpower.

'7. In a governor, the combination with a motor-controlling shaft, of ahollow actuating-shaft therefor,means for rotating the actuating-shaftin opposite directions, connectors between the rotating means andactuatingshaft located in part within said actuating shaft, a rodslidable within said actuatingshaft, a fulcrumed lever connectedintermediate its ends to said rod, means providing for a verticalmovement of said fulcrum, and power mechanism acting upon the outer endof said lever.

8. In a governor, the combination with a hollow actuating-shaft, ofmeans for rotating the actuating-shaft in opposite directions, connectors between the rotating means and actuating-shaft located in partwithin said actuating-shaft, a rod slidable within said actuatingshaft,apivoted lever connected intermediate its ends to said rod, apower-cylinder acting upon the outer end of said lever, a valve forcontrolling the admission of pressure to the cylinder, a lever, aconnector between said lever and valve, and centrifugal mechanism foroperating said lever.

9. In a governor, the combination with a motor-controlling shaft, of ahollow actuating-shaft therefor, two oppositely-rotating driving-shafts,pairs of coacting clutch-members carried by the actuating-shaft anddriving shafts, an operating member for the clutches movable within theactuating-shaft, a pivoted lever connected intermediate its ends withsaid operating member, a power-cylinder acting upon said lever, andmeans having provision for the vertical movement of the pivoted end ofsaid lever.

10. In a governor, the combination with a motor-controllingshaft, of ahollow actuatingshaft therefor, two oppositely-rotating driving-shafts,pairs of coacting clutch members carried by the actuating-shaft anddrivingshafts, an operating member for the clutches movable within theactuating-shaft, a pivoted lever connected intermediate its ends withsaid operating member, a power-cylinder acting upon said lever, a valvecontrolling the admission of pressure to the cylinder, a lover, aconnector between said lever and valve, and centrifugal mechanismcontrolling the operation of said lever.

11. In a governor, the combination with a ITO nmtor-controllingshaft, ofahollow actuatingshatt therefor, two oppositelv-rotating driving-shafts,pairs of coacting clutch members carried by the actuating-shaft anddrivingshatts, a rod provided with a recess movable within theactuating-shaft, a rigid connector one end of which rests within therecess and the other end of which rests in one of each pair of clutchmembers, a pivoted lever connected intermediate its ends with said rod,and a power-cylinder acting upon said lever.

12. In a governor, the combination with an actuating-shaft, of twooppositelyrotating d riving-shat'ts, clutches connecting thedriving-shafts and actuating-shaft,a pivoted lever, a member to whichsaid lever is pivoted, means for vertically moving said member, apower-("ylinder for operating the free end of said lever, a threadedbearingswiveled to said lever intermediate its ends, and a threaded rodcoacting with said bearing and operated by said actuating-shaft tochange the relative positions of said lever and rod.

13. In a governor. the combination with an actnating-slni'tt, of twooppositely-rotating driving-shat'ts, clutches connecting thedriving-shafts and actuating-sha t't,a pivoted lover, a member to whichsaid lever is pivoted, means for vertically moving said member, aswiveled block mounted on said lever intermediate its ends, a rodconnected with the clutchesand threaded into saidswiveled block, andpower mechanism acting upon the outer end or the lever.

14. In a governor, the combination with an actuating-shaft, of twooppositely-rotating driving-shafts, clutches connecting thedriving-shat'ts and actuating-shaft, a pivoted lever connected with theclutches at a point intermediate its ends, power mechanism acting uponone end of the lever, a member to which said lever is pivoted, andvertical guides for said member.

15. In a governor, the combination with an actuating-shaft, of twooppositely-rotating driving-shafts, clutches connecting thedriving-shafts and actuating-shaft, a lever, a swiveled block mounted onsaid lever, a rod connected with the clutches and threaded into saidswiveled block, power mechanism acting upon one end of the lever, aroller upon the other end of said lever. and guides for said roller.

It In a governor. the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, adash-pot, and a piston in said dash-pot movable with said valve.

17. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingl l l l l shaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, adash-pot, a piston in said dash-pot movable with said valve, and meansregulating the movement of liquid contained within said dash-pot fromone side of said piston to its. opposite side.

18. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, adash-pot, a piston in said dash-pot movable with said valve, a reservoirabove said dash-pot, and a passage from said reservoir communicatingwith either end of said dash-pot.

l9. Ina governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingsha't't, a power-cylinder acting uponthe connectors, a valve for controlling the application of power, adash-pot, a piston in said dash-pot movable with said valve, a reservoirabove said dash-pot, a passage communicating with either end thereof,and means for regulating the size of opening of one of said passages.

20. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylimler acting upon theconnectors, a valve for controlling the application of power, adash-pot, a piston in said dash-pot movable with said valve, a reservoirabove said d ash-pot, a passage communicating with either end thereof,and a threaded member above one of said passages and adapted to regulatethe opening therethrough.

21. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a powencylinder acting upon theconnectors, a valve for controlling the applition of power, a dash-potin axial line with said valve, a valve-stem extending through saiddash-pot, a piston secured to said valvestem within said dash-pot, andmeans secured to said valve-stem for moving said valve.

In a governor, the combination with an actuating-shaft, of means forrotatingsaid actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shat't, a powerc vlinder acting uponthe connectors, avalve for controlling the application of power, avalvesten1 provided with a threaded end, a not upon said threaded end,means for turning said stem within said nut, and means for moving saidnut to reciprocate said valve.

23. In a governor, the combination with an IIO actuating-shaft, of meansfor rotating said actuating-shaft in opposite directions, connectorsbetween the rotating means and actuating-shaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, avalvestem provided with a threaded end, a nut upon said threaded end, ahead for turning said stem within said nut, and means for moving saidnut to reciprocate said valve.

24. In a governor, 'the combination with an actuating-shaft, of meansfor rotating said actuating-shaft in opposite directions, connectorsbetween the rotating means and actuating-shaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted member connected to said valve-stem formoving said valve, and means for adjusting the position of said valverelative to said pivoted member.

25. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power. avalve-stem therefor provided with a threaded end, a nut upon saidthreaded end, means for adjusting said stem relative to said nut, abifurcated member supporting said nut and provided with a shank, and apivoted lever provided with a socket to receive said shank.

26. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a lever connected thereto and provided at its lowerend with a pin, and guides for said pin extending longitudinally of saidlever.-

27. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever connected thereto and providedintermediate its ends with a pivoted block, a rod passing through saidblock, shoulders secured to said rod on either side of said block,springs interposed between said block and shoulders, and means formoving said rod longitudinally.

28. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever connected thereto, a block pivotedto said lever intermediate its ends, a rod passing through said blockprovided with shoulders, washers upon said rod normally bearing againstsaid shoulders on either side of said block, other shoulders on eitherside of said block secured to said rod, springs interposed between eachpair of shoulders on either side of said block, and means for movingsaid rod longitudinally.

29. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever connected thereto, a block pivotedto said lever intermediate its ends, a rod passing through said blockprovided with shoulders, washers upon said rod normally bearing againstsaid shoulders on either side of said block, other shoulders on eitherside of said block secured to said rod, springs interposed between eachpair of shoulders on either side of said block, centrifugal mechanism,and mechanism connecting said centrifugal mechanism with said rod.

30. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, apivoted lever connected thereto and providedintermediate its ends with a pivoted block, a rod passing through saidblock, shoulders secured to said rod on either side of said block,-springs interposed between said block and shoulders, and centrifugalmechanism for moving said rod longitudinally.

31. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, apivoted lever for actuating the same, a rodpassing through said lever, means for moving said rod lengthwise, andtension devices interposed between said rod and said lever adaptednormally to cause said rod and lever to move together but under abnormalconditions to permit one to move independently of the other.

32. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodpassing through said lever, centrifugal mechan- ICC IIC

ism for moving said rod lengthwise, and tension devices interposedbetween said rod and said lever adapted normally to cause said rod andlever to move together but under abnormal conditions to permit one tomove indcpendently of the other.

33. In a governor, the combination with an acttmting-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuat- I 1ngshaft, a power-cyhnder acting uponthe 5 connectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with ahearing at one end and with a threaded shank at its opposite end, apivoted nutfor said shank, a lever in which said nut is mounted, andcentrifugal mechanism for operating said lever.

23%. In a governor, the combination with an actuating-shaft, of meansfor rotating said actuating-shaft in opposite directions, connectorsbetween the rotating means and actuatingshaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, avalve-stem there'fm', a pivoted lever for actuating the same, a rodconnected to said lever intermediateits ends and provided with a hearingat one end and with a threaded shank at its opposite end, a pivoted nutfor said shank, a lever in which said nut is mounted, centrifugalmechanism for operating said lever, and tension devices interposedbetween said pivoted lever and said rod causing the two normally tooperate together but permitting each to operate independently of theother under abnormal conditions.

in a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with abearing at one end and with a threaded shank at its opposite end, apivoted nut for said shank, a lever in which said nut is mounted,centrifugal mechanism for operating said lever, a block fulcrumed insaid pivoted lever and provided with a bearing-through which said rodpasses, and springs on said rod on either side of said block adapted tocause said rod and lever to normally move in unison but permitting eachto move independently of each other under abnormal conditions.

36. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a bifurcated leversupporting said nut, centrifugal mechanism for actuating said bifurcatedlever, and means for rotating said threaded rod to vary the distancebetween said pivoted lever and said nut.

37. In a governor, the combination with an actuating-slmft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylimler acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same. a rodconnected to said lever intermediate its endsand provided with athreaded end, a nut upon said threaded end, a bifurcated leversupporting said nut, centrifugal mechanism for actuating said bifurcatedlever, means for rotating said threaded rod to vary the distance betweensaid pivoted lever and said nut, and tension devices interposed betweensaid pivoted lever and said rod causing the two to normally operatetogether but permitting each to operate independently of the other underabnormal conditions.

38. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotatingmeans and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the applicationof power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a bifurcated leversupporting said nut, centrifugal mechanism for actuating said bifurcatedlever, means for rotating said threaded rod to vary the distance betweensaid pivoted lever and said nut, a block fulcrumed in said pivoted leverand provided with a hearing through which said rod passes, and springson said rod on either side of said block adapted to cause said rod andlever to normally move in unison but permitting each to moveindependently of each other under abnormal conditions.

39. in a governor, the combination with an actuating-slmft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuatingshaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said leverintermediate its ends and provided with athreaded end, a nut upon said threaded end, a bifurcated leversupporting said nut, centrifugal mechanism for actuating said bifurcatedlever, means for rotating said threaded rod to vary the distance betweensaid IIO pivoted lever and nut, a pinion upon said rod, a-rack meshingwith said pinion, and controlling mechanism actuated by the centrifugalmechanism for operating said rack.

40. In a governor, the combination withan Y actuating-shaft, of meansfor rotating said ac tuating-shaft in opposite directions, connectorsbetween the rotating means and actuatingshaft, a power-cylinder actingupon the connectors, a valve for controlling the applica tion of power,a valve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a bifurcated leversupporting said nut, centrifugal mechanism for actuating said bifurcatedlever, means for rotating said threaded rod to vary the distance betweensaid pivoted lever and nut, a pinion upon said rod,

a rack meshing with said pinion, a revoluble rod on which said rack ismounted, a roller secured to said revoluble rod, a revoluble disk withwhich said roller coacts, means for moving said controlling-rodlengthwise to actuate said pinion, and means for causing said roller toreturn to its normal position.

4:1. In a governor, the combination with an actuating-shaft, of meansfor rotating said actuating-shaft in opposite directions, connectorsbetween the rotating means and actuatingshaft, a power-cylinder actingupon the con nectors, a valve for controlling the application of power,avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a pinion on said rod, a rackmeshing therewith, a revoluble rod supporting said rack adapted for endwise movement and having its opposite end threaded, a roller secured tosaid revoluble rod, a revoluble disk coacting with said roller, arevoluble member cooperating with the threaded end of said revolublerod, and means for revolving said revoluble member.

42. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a pinion on said rod, a

rack meshing therewith, a revoluble rod supi porting said rack adaptedfor endwise movement and having its opposite end threaded, a rollersecured to said revoluble rod, a revoluble disk coacting with saidroller, a revoluble member cooperating with the threaded end l i toindicate the position of the gate or other of said revoluble rod, asprocket-wheel secured to said revoluble member, a sprocketwheel securedto the actuating-shaft, and a chain interposed between saidsprocketwheels.

e3. In agovernor, the combination'with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, avalve-stem therefor, a pivoted lever for actuating the same, a rodconnected to said lever intermediate its ends and provided with athreaded end, a nut upon said threaded end, a pinion on said rod, a rackmeshing therewith, a revoluble rod supporting said rack adapted forendwise movement and having its opposite end threaded, a roller securedto said revoluble rod, a revoluble disk coacting with said roller, arevoluble member cooperating with the threaded end of said revolublerod, and means for operating said revoluble member by the rotation ofsaid actuating-shaft.

ME. In agovernor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, a pistonwithin said powercvlinder, a rod therefor, an indicating-pointer on saidrod, an indicator-plate cooperating with said pointer to indicate theoperation of said governor, a revoluble shaft provided with a spiralthread, and a nut thereon cooperating with said indicator-plate toindicate the position of the gate being regulated.

so. in a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, arevoluble shaft provided with a spiral thread, a nut mounted on saidshaft, means for revolving said shaft to move said nut lengthwisethereof, and an indicatorplate cooperating with said nut.

46. In agovernor, the combination with an indicator-plate having astraight side, of a pointer movable in a straight line and cooperatingwith said indicator-plate, means for moving said pointer to indicate theoperation of the governor, a revoluble shaft provided with a spiralthread, a nut coacting therewith, and means for revolving said shaft tomove said nut lengthwise thereof to indicate upon said plate theposition of the gate or other device being regulated.

47. In a governor, the combination of an indicator-plate, a pointercooperating therewith to indicate the operation of the governor, and asecond pointer cooperating therewith device being regulated.

4E8. In a governor, the combination of an IIO indicator-plate, a movablemember, a pointer secured thereto and co '3perating with said plate toindicate the operation of the governor, and a second pointer operated bythe gate-operating device cooperating with the same plate to indicatethe position of'the gate.

la in a governor, the combination of an indicator-plate, a pointertherefor controlled by the governor mechanism and a second pointertherefor controlled by the gate-operating mechanism, and means foroperating said pointers in unison during the operation of the governor.

50. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connec torsbetween the rotating means and actuating-shaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, adash-pot, a piston therein operating with said valve, a reservoir at oneside of said dash-pot, means permitting the passage of liquid from oneside of said dashpot to its opposite side, and means for deflecting thecurrent of said liquid.

51. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectorsbet-ween the rotating means and actuating-shaft, a power-cylinder actingupon the connectors, a valve for controlling the application of power, adash-pot, a piston therein operating with said valve, a reservoir at oneside of said dash-pot, passages communicating of said passages.

In a governor, the combination with an actuating-shaft, of means forrotating said actimting-shatt in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, adash-pot, a piston therein operating with said valve, a reservoir at oneside of said dash-pot, passages communicating between said reservoir anddash-pot on either side of said piston, a deflector above one of saidpassages, and means for deflecting the current from one of said passagestoward the other passage.

53. In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon thecormectors, a valve for controlling the application of power, andl'luid-controlled mechanism for regulating the movement of said valve.

5- In a governor, the combination with an actuating-shaft, of means forrotating said actuating-shaft in opposite directions, connectors betweenthe rotating means and actuating-shaft, a power-cylinder acting upon theconnectors, a valve for controlling the application of power, afluid-controlled device for regulating the movement of said valve, andmeans for varying the movement of said device.

Signed by meat Boston, Massachusetts, this 2d day of June, 1904.

NA'ITI l ANIEL LO MBARD.

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